Parent Components Research Articles

A network approach to understanding parenting: Linking coparenting, parenting styles, and parental involvement in rearing adolescents in different age groups.

Prior research has used several indicators to represent parenting, from dyadic interactions between mothers/fathers and children (e.g., parenting styles, parental involvement) to triadic mother-father-child interactions (e.g., coparenting). This study applies network analysis to explore the interrelations between maternal and paternal coparenting, parenting styles, and parental involvement in families with adolescents in early (10-12 years), middle (13-15 years), and late (16-18 years) stages. Network analysis was used to identify central nodes (i.e., central parenting components) and central mechanisms (i.e., relations between central parenting variables) underlying the parenting network, providing a comprehensive and nuanced understanding of parenting. This study included 4,852 adolescents aged from 10 to 18 (Mage = 13.80, SD = 2.38, 51.5% females) in two-parent families across different regions of China. The results indicated that both maternal and paternal coparenting integrity and warm parenting style served as important bridges to connect the whole network; their integrity and emotional involvement were closely linked to other parenting variables. Also, the intrapersonal and interpersonal effects between mothering and fathering as well as adolescent developmental differences were found. If it is assumed that the parenting network is causal, the results suggest that supportive parenting should be considered the prime target for enhancing parenting systems. Adolescent developmental stages appear to be a vital factor influencing parenting intercorrelations, and interventions should be designed based on children's age groups. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

The results of the assessment of new varieties of Solanum tuberosum L. according to the main economic and valuable characteristics depending on the soil and climatic zones of cultivation

Purpose. To carry out a comprehensive study and evaluation of new varieties of potatoes (Solanum tuberosum L.) according to the main economic and valuable indicators: yield, resistance to diseases and the content of starch and dry matter. Methods. The qualification examination of potato varieties for suitability for distribution in Ukraine (PSP) is carried out throughout the territory of Ukraine within the soil and climate zones of the Forest Steppe and Polissia in accordance with the Methodology for the qualification examination of plant varieties for suitability for distribution in Ukraine (General part) and the Methodology for the examination of varieties potato plants and groups of vegetable, melon, spicy-tasty plants for their suitability for distribution in Ukraine. Results. Economic and valuable characteristics of new potato varieties ‘Acoustic’, ‘Lady Amarilla’, ‘Sensation’, ‘Mia’, ‘Baltic Fire’, included in the State Register of plant varieties suitable for distribution in Ukraine (hereinafter – Register of varieties), were studied. An analysis of the varietal potential of potatoes was carried out based on the results of the qualification examination of the varieties. It was established that the yield of the stu­died potato varieties in all years of examination was higher in the forest-steppe zone and exceeded the yield obtained in the Polissia zone. In particular, the productivity of the varie­ty ‘Sensation’ by 29%, ‘Mia’ by 20%, ‘Lady Amarilla’ by 16%, ‘Baltic Fire’ by 19%, ‘Acoustic’ by 21%. Varieties ‘Sensation’ (24.3–33.8 t/ha) and ‘Acoustic’ (25.5–30.2 t/ha) produced the highest yield over the years of research. The varieties ‘Lady Amarilla’ and ‘Baltic Fire’ prevailed in terms of qua­lity indicators: the starch content in their tubers was 13.7–15.4% and 13.3–13.9%; dry matter content 22.2–23.2% and 21.5–22.0%, respectively. Disease and pest damage was generally average, with late blight causing the most dama­ge to crops in the Polissia zone. Conclusions. Based on the results of the qualification examination, five positive expert opinions were prepared for the PSP. All studied varieties are recommended for growing in the Forest-Steppe and Polissia zones. Cancer-resistant potato varieties are proposed for introduction in disease foci and use as parental components and obtaining disease-resistant offspring. Cancer-resistant potato varieties are recommended to be grown in areas where the disease is likely to be detected and used in bree­ding to obtain new cancer-resistant varieties.

The results of studying the productivity indicators of three-line sunflower hybrids and their parental forms under the influence of weather conditions

Topicality. At the present stage, the basis of the Ukrainian economy is agricultural production. Agriculture is the only sphere that is as dependent on weather fluctuations as any other. And it constantly has to adapt to the ongoing climate change. Climate changes, which cause an increase in temperatures, changes in the amount of precipitation and its distribution during the growth season, unstable weather conditions, the spread of pests and diseases, threaten the production of sunflower hybrids. The question about the influence of weather factors on the formation of productive traits of both hybrids and their parental forms, the dependence of agricultural crops on weather factors (temperature and precipitation, both for the entire growth season and for several months) is relevant. Purpose. To study of the influence of weather conditions on the formation of productive traits of hybrids and their parental components. Materials and Methods. The triple hybrids of sunflower (Helianthus annuus L.) Ahent, Ahronomicnyi, Kameniar, Marshal, Zaporizkyi 28, their parental components – single-cross sterile hybrids ZL(22х102)A, ZL(42х46)A, ZL(42х58)A and the restorers of fertility ZL512Rf, ZL678Rf and ZL7034Rf were studied. Results. Over the years of research, yield fluctuations reached to 0.90 t/ha for Ahent hybrid, 1.66 t/ha – Agronomichnyi, 0.13 t/ha – Marshal, 0.96 t/ha – Kameniar and 0.58 t/ha – Zaporizkyi 28. The highest yields and oil yield per unit area were in 2018. According to the results of three-year trials on hybrids and their parental forms, the Marshal hybrid had the highest yield – 2.64 t/ha with seed oil content of 50.78 % in 2016. Also in 2016, all pollen fertility restorers had the highest yields and oil yields. In 2018, four out of five hybrids showed the highest yields and oil yield per unit area. In 2017, the lowest oil content in the seeds of the tested hybrids was in the range of 45.16–48.49 % for Ahent and Zaporizkyi 28, respectively. Conclusions. It was established that Marshal is the most productive hybrid for sunflower cultivation in the southern Steppe of Ukraine, its average yield was 2.56 t/ha that exceeded by 0.27–0.48 t/ha this indicator in other hybrids. Key words: sunflower, hybrid, yield, oil content, 1000 seeds weight, oil yield, weather conditions, precipitation, temperature, sum of active temperatures, correlation coefficient

Breeding sugar-fodder beet hybrids for biofuel production

Topicality. The development of biofuel engineering in Ukraine demands to cultivate the agrofuel crops as renewable energy sources. The sugar-fodder hybrids created using high-value sterile forms of sugar beet and fertile forms of fodder beet may hold promise for biofuel feedstock production. Purpose. Develop experimental sugar-fodder beet hybrids with high energy yield, suitable for alternative biofuels production, and select the best ones. Materials and Methods. 6 pollen-sterile breeding lines of sugar beet and 23 selection numbers of fertile fodder beet were used to create the sugar-fodder hybrids. The breeding process comprised the following steps: selection of initial parental lines, evaluation them by combining ability, and, based on the best, formation of the hybrids. Method of multi-tester top crossing was applied and field trials of the experimental hybrids held. Results. The parent components varied significantly in energy yield, which ranged within 53.5–61.5 GJ/ha (for the MS-samples) and from 80.0 to 87.8 GJ/ha for the top 4 pollinators. On completion of the tester crosses, the following have been selected: MS-samples of the sugar beet lines MS Iv. 24869 and MS Iv. 2484 with proven significant effects of general combining ability at 6.7 GJ/ha and 4.0 GJ/ha; and pollinators of the fodder beet varieties Halytskyi and Lvivskyi zhovtyi – at 8.0 GJ/ha and 6.5 GJ/ha, respectively. In the genotypic structure of variability of the “energy output” trait, the total share of the influence of valuable additive gene complexes of parental samples (51 %) was almost equivalent to the share of non-additive interaction of components (49 %). Conclusions. By the method of combinative selection, three new genotypes of sugar-fodder hybrids have been developed, with energy output rate higher than 120 GJ/ha, suitable for the biofuel production from renewable sources. These are the genotypes MS Iv. 24869/k 41/42; MS Iv. 24869/k 13/14; and MS Iv. 24869/s. Lvivskyi zhovtyi, with indicators exceeding the standard by 14.3 %, 15.4 % and 8.5 %, respectively. Keywords: bioenergy, pollen-sterile forms, pollinators, sugar-fodder hybrids, combining ability, energy yield

Challenges of Women Leaders in South African Schools: Towards a Resolution

This article explored the challenges of women leaders in South African schools, in the Gauteng Province. Existing studies on this issue only document the situation but do not specify or suggest frameworks on how the challenges can be dealt with. The article used secondary data sources obtained in both grey and academic literature, using terms such as women leaders, women leader challenges, women empowerment and women emancipation as key terms. It also utilised in-depth interviews conducted with a total of 52 education stakeholders consisting of six male and female principals, six male and female deputy principals, 12 male and female departmental heads, 18 Post Level one teachers, five male and female members of the School Governing Body (SGB) from staff and parent components, three Gauteng Department of Education officials, one representative of South African Principals Association in Gauteng and one labour union representative who were selected purposively. The theoretical framework adopted in the article integrated feminist and sociocultural theories. The article showed that women leaders faced a variety of social, cultural and structural challenges. It proposed the deployment of transformational leadership across all levels of the department as the best long-lasting solution.

Avidity engineering of human heavy-chain-only antibodies mitigates neutralization resistance of SARS-CoV-2 variants.

Emerging SARS-CoV-2 variants have accrued mutations within the spike protein rendering most therapeutic monoclonal antibodies against COVID-19 ineffective. Hence there is an unmet need for broad-spectrum mAb treatments for COVID-19 that are more resistant to antigenically drifted SARS-CoV-2 variants. Here we describe the design of a biparatopic heavy-chain-only antibody consisting of six antigen binding sites recognizing two distinct epitopes in the spike protein NTD and RBD. The hexavalent antibody showed potent neutralizing activity against SARS-CoV-2 and variants of concern, including the Omicron sub-lineages BA.1, BA.2, BA.4 and BA.5, whereas the parental components had lost Omicron neutralization potency. We demonstrate that the tethered design mitigates the substantial decrease in spike trimer affinity seen for escape mutations for the hexamer components. The hexavalent antibody protected against SARS-CoV-2 infection in a hamster model. This work provides a framework for designing therapeutic antibodies to overcome antibody neutralization escape of emerging SARS-CoV-2 variants.

Barriers to involvement in parenting activities in school-based preschools in disadvantaged neighbourhoods in Canada

ABSTRACT Preschool is a particularly opportune time to introduce measures that promote parental school-based involvement, as this is when the initial contact with the school is made. In Québec, a French-speaking province in Canada, voluntary school-based preschools for 4-year-olds have been offered to families in disadvantaged neighbourhoods. A component for parents comprised of 10 activities was developed specifically to promote parent involvement from the beginning of their child’s schooling. However, some parents are more likely than others to encounter barriers that curtail their participation in these activities. Seventeen teachers working in preschools for 4-year-olds in targeted areas and 25 of their parents participated in this qualitative study. The study’s objective was to identify the barriers to participation among parents whose involvement in school activities during the school year was low. Based on Hornby and Lafaele’s conceptual model, a phronetic iterative analysis was used to describe the experiences reported by teachers and parents. Finally, the four main findings emerging from this study were formulated, and avenues for reflection by school-based preschool personnel were put forward.

Novel biosynthesis of MnO NPs using Mycoendophyte: industrial bioprocessing strategies and scaling-up production with its evaluation as anti-phytopathogenic agents

This report provides the first description of the myco-synthesis of rod-shaped MnO NPs with an average crystallite size of ~ 35 nm, employing extracellular bioactive metabolites of endophytic Trichodermavirens strain EG92 as capping/reducing agents and MnCl2·4H2O as a parent component. The wheat bran medium was chosen to grow endophytic strain EG92, which produced a variety of bioactive metabolites in extracellular fraction, which increases the yield of MnO NPs to 9.53 g/l. The whole medium and fungal growth conditions that influenced biomass generation were optimized as successive statistical optimization approaches (Plackett–Burman and Box–Behnken designs). The production improvements were achieved at pH 5.5, WBE (35%), and inoculum size (10%), which increased Xmax to twelve-folds (89.63 g/l); thereby, Pmax increased to eight-folds (82.93 g/l). After 162 h, Xmax (145.63 g/l) and Pmax (99.52 g/l) on the side of µmax and YX/S were determined as 0.084 and 7.65, respectively. ViaTaguchi experimental design, fungus-fabricated MnO NPs reaction was improved by adding 0.25 M of MnCl2·4H2O to 100% of fungal extract (reducing/capping agents) and adjusting the reaction pH adjusted to ~ 5. This reaction was incubated at 60 °C for 5 h before adding 20% fungal extract (stabilizing agent). Also, Pmax was raised 40-fold (395.36 g/l) over the BC. Our myco-synthesized MnO NPs exhibit faster and more precise antagonistic actions against phytopathogenic bacteria than fungi; they could be employed as an alternative and promised nano-bio-pesticide to manage a variety of different types of disease-pathogens in the future.

Strengthening parenting among refugees in Europe (SPARE): initial feasibility in Iceland and Norway

Several European countries have offered refuge to families forced to flee their homes because of violence, war, and other disasters. Stressful factors associated with displacement and relocation place families at risk for disrupted effective child-rearing practices and associated growth in problems for parents and their children. The need to promote healthy adjustment and prevent and ameliorate problems for refugee families is vital. The present study describes SPARE (Strengthening Parenting Among Refugees in Europe), a trauma-informed adaptation of the evidence-based parenting program Generation Parent Management Training Oregon Model (GenerationPMTO). SPARE integrates core parenting components in GenerationPMTO with skills designed to address families’ trauma experiences. A collaborative team of GenerationPMTO experts in Iceland, Norway, Denmark, and the Netherlands have adapted this parent group intervention for Arabic-speaking (Middle Eastern) refugee families who have relocated in Europe. This report describes results from an acceptability and feasibility study based on the first two SPARE groups completed in Iceland and Norway. Overall, attendance was good, parents reported satisfaction with their experiences in the groups and said that the material addressed important family needs. Parents also indicated the need for more time to deepen their understanding, provide greater focus on age-specific needs, and in Norway in particular, more information about the child welfare system.

Combining ability and inheritance of yield-related traits in F1 of winter barley under conditions of Ukrainian Forest-Steppe

Purpose. To determine the peculiarities of the manifestation of combining ability and the mode of inheritance of yield-related traits in winter barley and to identify genetic sources and promising hybrid combinations for further breeding efforts under conditions of Ukrainian Forest-steppe. Methods. The research was conducted in 2018/19 and 2021/22 at the V. M. Remeslo Myronivka Institute of Wheat of NAAS of Ukraine. In accordance with generally accepted methods, the degree of phenotypic dominance, heterobeltiosis and effects of general combining ability in the top-cross hybrids of winter barley for key yield components were determined. Results. The variability of the manifestation level of the studied traits in parental components and hybrids in different years were established. According to the indicator of the degree of phenotypic dominance, the variability of the character of inheritance was revealed depending on the traits, hybrid combinations and growing conditions. Hybrid combinations with positive overdominance and dominance of individual yield components were highlighted. In particular, according to plant productivity these combination are: ‘Scarpia’ / ‘MIP Darii’, ‘Scarpia’ / ‘MIP Korsar’, ‘Aborygen’ / ‘MIP Corsar’, ‘Titus’ / ‘MIP Status’, ‘MIP Yanus’ / ‘MIP Status’, ‘Titus’ / ‘Paladin Myronivskyi’, ‘Maybrit’ / ‘Paladin Myronivskyi’ ‘MIP Yanus’ / ‘Paladin Myronivskyi’. The varieties with increased effects of general combining ability for yield-related traits under different growing conditions were distinguished. As follows: productive tillering – ‘Scarpia’, ‘MIP Darii’; grain number per ear – ‘MIP Yanus’, ‘MIP Hladiator’, ‘MIP Status’; 1000 grain weight – ‘Titus’, ‘MIP Korsar’, ‘MIP Status’; grain weight per plant – ‘MIP Yanus’, ‘MIP Status’, ‘MIP Darii’. Conclusions. Selected hybrid combinations with positive overdominance and dominance are of practical value for further breeding to increase individual components and plant productivity in general. The varieties with increased effects of general combining ability are valuable genetic sources for involvement in crossing for improving the certain traits.

Yodai - a new variety of grass pea (Lathyrus sativus L.)

The biological performance of grass pea (Lathyrus sativus L.) hybrid lines [LHL (BGE027129 ? LA5108), LHL-2 (BGE025277 ? LA5108) and LHL-3 (LA5108 ? BGE027129]) and their parental components (BGE027129, BGE025277 and LA5108 varieties) were studied in a three-year field experiment. Biometric analysis of each variety and line was done for main quantitative traits and phenological stages and periods. The height of the plants at the technological maturity of the grain reached 46 cm. The vegetation period has an average duration of 93 days. New variety Yodai was created, which was obtained by multiple individual selection from the cross BGE027129 ? LA5108 (line LHL). The new variety ripens 4-5 days before the varieties BGE027129 and LA5108. On average, 13 well-fed pods per plant were formed with a total of 22 normally developed seeds. The seeds were medium-large with a white seed coat, with a flat oval shape. The seed productivity (4.41 g/plant) exceeds the average of the parental varieties (3.80 g/plant). The weight of 1000 seeds was about 172 g. The crude protein content was 23.85%. In addition, the variety has good resistance to cracking of the pods. It is drought tolerant and weakly attacked by diseases and enemies. In 2022, by the decision of the Expert Commission at the Executive Agency for Variety Testing, Field Inspection and Seed Control, Bulgaria (appointed by order RD-10-1/14.01.2022) and by order No. RD-14-3 of 02.03.2022, the Yodai variety was recognized as new and original.

Facile synthesis of hydroxypropyl chitosan-egg white hydrogel dressing with antibacterial and antioxidative activities for accelerating the healing of burn wounds.

Burn injury is the fourth most common injury worldwide. Deep partial-thickness burns are susceptible to bacterial infections due to the absence of a skin shield, which can lead to severe pain, scarring, and even death. Therefore, developing a wound dressing that can promote wound repair accompanied by excellent antibacterial effects is crucial for clinical application. Herein, a facile self-healing hydroxypropyl chitosan-egg white hydrogel (HPCS-EWH) with excellent biocompatibility, antioxidant activity, anti-inflammation and antibacterial properties was prepared. This physical crosslinking hydrogel was endowed with the intrinsic merits of its parental components, such as reactive oxygen species (ROS) scavenging, antibiosis, and thriving cell growth in vitro. In an in vivo model of Staphylococcus aureus-infected burn wounds, HPCS-EWH could accelerate wound healing due to its anti-inflammatory and antibacterial activities, and promote cell proliferation and angiogenesis. Therefore, HPCS-EWH could be used to heal deep partial-thickness skin burn wounds.

Оценка влияния образцов коллекции ×Trititrigia как исходного материала на качество зерна в селекционном процессе зерновых культур

In the conditions of the Central Non-Chernozem region, the development of wheat and triticale varieties combining stable high yields and grain quality is one of the most important breeding problems. One of the solutions may be to increase the genetic diversity of new varieties through interspecific and intergeneric hybridization. Trititrigia (×Trititrigia cziczinii Tzvel., 1973) is a synthetic grain crop (2n=56), a potential donor of economically valuable traits of wheat. The studies were carried out in the conditions of sod-podzolic heavy loamy soils of the Moscow region (2008–2014). Samples of late generations of trititrigia from the modern collection of the Department of Remote Hybridization of the МBG RAS on grain quality were studied. The results show that most of the samples (82%) have a potentially high protein content exceeding 13.5%. 10% of the samples accumulate more than 16% protein in grain and can be included in breeding programs. The studied samples exceed the varieties Moskovskaya 39 and Zarya in the amount of gluten in grain and form from 32.6 to 52.0% and can be used both for cultivation as independent varieties for dry gluten production and as parent components in crosses.

THE FACTORS INFLUENCING ENGLISH LANGUAGE LEARNERS' MOTIVATION

Motivation/demotivation has been widely regarded by teachers and scholars as one of the most essential factors in second language (L2) learning. The current study looked at the importance of motivation and the elements that influence students' motivation when teaching/learning English as a foreign language. Parental, contextual, and instructor attitude components were investigated. In this research participated 40 students of the 1st year studying English at the Department of Social and Humanities of the Academy of Physical Education and Mass Sports. The participants were given a survey that included many statements about the aforementioned issues. According to the findings of the current study, there are tactics and behaviors that stimulate students while suppressing favorable views about English learning. The findings revealed that learners were more motivated to study English when their parents supported and encouraged them to do so. The study also discovered that reinforcing learner ideas encouraged students, and that students were more driven when they worked with their peers. Furthermore, the study's findings revealed a variety of actions and tactics for motivating students.

Emotional Component of Parents of Students with Disabilities’ Psychological Readiness to Effectively Support a Child in Inclusive Education

Emotional Component of Parents of Students with Disabilities’ Psychological Readiness to Effectively Support a Child in Inclusive Education

Ugradnja Ga1-S gena u roditeljske linije hibrida kukuruza belog zrna pomoću molekularnih markera

Maize Research Institute Zemun Polje has a marker-assisted backcross breeding (MABB) program aimed to incorporate the strong allele of incompatibility gene Ga1 into parental components of the hybrids with specific traits (white kernel). The main objective of this research was marker-assisted development of the white maize hybrid's parental lines with complete cross-incompatibility to foreign pollens. Ga1-S-tightly-linked molecular markers successfully identified heterozygous plants with a percentage of approximately 50% after all three backcrossings. Regarding the background selection, 69% of progenies had recurrent parent's genome (RPG) above the theoretical value for BC3 generation. Also, a few individuals even had 99%, the value theoretically achieved in the BC6 generation, showing that MABB made a genetic gain in RPG recovery. Foreground selection in this generation aimed to identify homozygous dominant individuals. Out of 264 BC3 F2 plants, 70 (26.5%) were dominant homozygotes, which is in accordance with the expected Mendelian ratio. Progenies of the BC3 F2 homozygous dominant plants were planted alternatively with yellow-kernel maize of the same maturity to check cross-incompatibility. Unfortunately, none of the dominant progenies had a 100% white kernel, most likely due to the presence of modifier genes that increase/decrease the effectiveness of pollen exclusion or that, alternatively, modifiers are lost during the backcrossing. It could be expected that successfully employed functional markers (developed from the sequence polymorphisms present within a functional gene(s) associated with phenotypic trait variations) would outbalance the noted impediments and enhance MABB efficiency to transfer the desired gene(s) controlling simple or complex trait(s) into cultivated varieties.

Variability of yield components in winter wheat varieties and breeding lines under environment of Ukrainian Forest-Steppe

Topicality. The main task of winter wheat breeding is to increase productivity, therefore, the development and introduction of new varieties of winter wheat with high productivity potential being well adapted to changing growing conditions into agricultural production is an urgent area of research. Breeders' efforts are aimed at developing varieties with a successful combination of high parameters of all the main productivity elements in one genotype, which will maximise grain yield. Breeding work is determined by many factors, among which the search and development of new genetic sources with high performance indicators. Therefore, the peculiarities of yield potential realization and the study of the mechanisms of productivity element formation under changing meteorological conditions are important for establishing the response rate and selecting the most stable productive genotypes and their further involvement in breeding programs. Purpose. To identify the best varieties and breeding lines of winter wheat in terms of productivity elements in the environment of the Forest-Steppe of Ukraine for their involvement in crossbreeding programmes. Methods. Visual – phenological observations; laboratory-field – determination of biometric indicators; mathematical and statistical – establishing the reliability of the obtained data. Results. It was found that the maximum realisation of the yield potential of winter wheat plants by structural elements occurred under optimal growing conditions such as in years with higher moisture availability and sowing on 5 October. Yield formation was significantly influenced by the weather conditions of the year, genotype and unaccounted factors. Sowing dates had a significant effect only on the manifestation of the plant height trait. There was a minor variation (3.8 %÷5.5 %) in plant height in all varieties and breeding lines. Different levels of variability were found for the following traits: number of productive stems varied from Cv=16.4 % (second sowing date in the dry 2019/20) to Cv=27.6 % (first sowing date in the favourable 2020/21); main head grain content and thousand grain weight – Cv=10.7÷17.6 % and Cv=8.8÷16.9 %, respectively. Regardless of varietal characteristics, the main spike length had insignificant (Сv=5.6÷8.8 %) phenotypic variability with a range of variation of 0.2–2.0 cm. There were determined the variability levels of traits by the spikelet number per spike (Сv=5.7 %÷8.6 %), by grain weight per spike (Сv=13.1÷20.5 %) and per plant (Сv=20.5÷36.3 %). Conclusions. The varieties MIP Assol, Hratsiia MYR, MIP Dniprianka, MIP Yuvileina and breeding lines LUT 55198, LUT 37519 consistently formed a high level of productivity elements regardless of sowing dates and conditions of the growing year, which indicates their high adaptive capacity. They are recommended for breeding programmes as valuable parental components. Key words: productivity parameters, trait, variation, sowing date, year conditions

Breeding of sugar beet hybrids suitable for the production of biofuel

The development of bioenergy in Ukraine requires the cultivation of energy crops as renewable sources of energy. Sugar beet hybrids created using valuable sterile and fertile forms can have a breeding perspective as a raw material for the production of biofuel. Therefore, the goal is to create experimental hybrids of sugar beets with high energy output, suitable for obtaining alternative types of biofuel, and to select the best of them. When creating sugar beet hybrids, 6 pollensterile and fertile samples of different ecological and genetic origins were used. The stages of the breeding process were the breeding of the original parental components, their evaluation by combining ability, and the formation of sugar beet hybrids based on the best of them. The method of multi-tester top-crosses and field tests of experimental sugar beet hybrids were applied. It was found that the parental components of sugar beet significantly differed among themselves in terms of bioethanol yield, the indicators of which ranged from 2.06 to 2.43 t/ha (TCS lines) and 2.23 to 2.73 t/ha (pollinators). The highest energy yield in topcross hybrids of sugar beets was noted in combinations created with the participation of polliniferous samples Iv.24869 (61.5 GJ/ha) and Iv.24845 (58.4 GJ/ha). Their effects of ZKZ were reliably positive and amounted to 6.7 and 4.0 GJ/ha, respectively. Numbers 1233-Jan.3 (2x) and 1183 02024 (2x) were recognized as the best pollinators of sugar beets. In the genotypic structure of variability of the "sugar yield" trait, the total share of the influence of valuable additive gene complexes of sugar beet parental forms (51 %) was almost equal to the share of non-additive interaction of components (49 %). By the method of combinatorial breeding, two new hybrid genotypes of sugar beets, suitable for the production of biofuel from renewable sources, were created, in which the energy yield exceeded the group standard by 10.6 and 12.6 %. Key words: bioenergy, sterile forms, pollinators, sugar beet hybrids, combining ability, energy output.

Когнитивный компонент педагогической готовности родителей детей дошкольного возраста к участию в инклюзивном образовательном процессе школы

The aim of the study is to substantiate the necessity of developing the cognitive component of the pedagogical readiness for the inclusive educational process at school among parents of preschool-aged children. The paper considers the notions of “pedagogical competence of parents” and “pedagogical readiness of parents”, as well as the cognitive component of the pedagogical readiness for the inclusive educational process at school among parents of preschool-aged children. The work presents the results of a survey of parents and identifies the level of formation of the cognitive component of the pedagogical readiness for the inclusive educational process at school among parents of preschool-aged children. Scientific novelty lies in recording empirical data on the state of the cognitive component of parents’ readiness to participate in the inclusive educational process at school. As a result, it has been determined that parents’ knowledge in the field of inclusive education is not sufficiently developed; it is necessary to form the cognitive component of the pedagogical readiness among parents of preschool-aged children for their full participation in the inclusive educational process at school.

Inheritance of kernel number per spike in F1 of spring barley obtained from crossings of cultivars of different origin, purpose of use and botanical varieties

Purpose. To reveal the peculiarities of inheritance of kernel number per spike in crosses of spring barley cultivars of different origin, purpose of use and botanical varieties, as well as to distinguish effective genetic sources for impro­ving the trait. Methods. The study was carried out at the M. Remeslo Myronivka Institute of Wheat of National Academy of Agrarian Sciences of Ukraine in 2019 and 2020. In F1 of spring barley in two diallel crossing schemes the degree of phenotypic dominance, parameters of genetic variation, and combining ability for kernel number per spike were determined. Results. According to the indicator of the degree of phenotypic dominance, all possible types of inheritance of kernel number per spike were identified. In a number of crossing compositions, a change in the type of inheritance depending on the conditions of the year was revealed. Most combinations with overdominance in both years were noted in crossings of the covered awned cultivar ‘Avgur’, as well as the covered awnless cultivar ‘Kozyr’. According to the parameters of genetic variation in crosses of malting varieties (covered awned), correspondence of the additive-dominant model, overdominance and dominance in loci, as well as unidirectional dominance to increasing of the trait caused by dominant effects were revealed. When crossing cultivars of different varieties, a change in gene action in different years was found. In particular, additive-dominant system changed to complementary epistasis, incomplete dominance to overdominance, unidirectional dominance to increa­sing of the trait to multidirectional dominance. The genetic sources of increased general combining ability were identified, as follows: covered awned malting cultivars ‘Quench’ and ‘Avgur’, the naked awned cultivar ‘CDC Rattan’, as well as the covered awnless cultivar ‘Kozyr’. Based on the constants of specific combining ability, the most promising crossing combinations for further breeding efforts were determined. Conclusions. The identified peculiarities of the inheritance of kernel number per spike make it possible to optimally combine parental components of crossings and carry out directional selection to increase the trait when developing spring barley cultivars for different use and different botanical varieties.